get_sha1_oneline: make callers prepare the commit list to traverse

diff --git a/t/t3210-pack-refs.sh b/t/t3210-pack-refs.sh
index 087ef75061f4d56fcb6350284d91820485249087..cd04361df811d329e269ac1d5eb0b0f03baa74d8 100755 (executable)
--- a/t/t3210-pack-refs.sh
+++ b/t/t3210-pack-refs.sh
@@ -28,7 +28,7 @@ test_expect_success \
      SHA1=`cat .git/refs/heads/a` &&
      echo "$SHA1 refs/heads/a" >expect &&
      git show-ref a >result &&
-     diff expect result'
+     test_cmp expect result'
 
 test_expect_success \
     'see if a branch still exists when packed' \
@@ -37,7 +37,7 @@ test_expect_success \
      rm -f .git/refs/heads/b &&
      echo "$SHA1 refs/heads/b" >expect &&
      git show-ref b >result &&
-     diff expect result'
+     test_cmp expect result'
 
 test_expect_success 'git branch c/d should barf if branch c exists' '
      git branch c &&
@@ -52,7 +52,7 @@ test_expect_success \
      git pack-refs --all --prune &&
      echo "$SHA1 refs/heads/e" >expect &&
      git show-ref e >result &&
-     diff expect result'
+     test_cmp expect result'
 
 test_expect_success 'see if git pack-refs --prune remove ref files' '
      git branch f &&
@@ -60,6 +60,12 @@ test_expect_success 'see if git pack-refs --prune remove ref files' '
      ! test -f .git/refs/heads/f
 '
 
+test_expect_success 'see if git pack-refs --prune removes empty dirs' '
+     git branch r/s/t &&
+     git pack-refs --all --prune &&
+     ! test -e .git/refs/heads/r
+'
+
 test_expect_success \
     'git branch g should work when git branch g/h has been deleted' \
     'git branch g/h &&
@@ -96,13 +102,20 @@ test_expect_success \
      git branch -d n/o/p &&
      git branch n'
 
+test_expect_success \
+       'see if up-to-date packed refs are preserved' \
+       'git branch q &&
+        git pack-refs --all --prune &&
+        git update-ref refs/heads/q refs/heads/q &&
+        ! test -f .git/refs/heads/q'
+
 test_expect_success 'pack, prune and repack' '
        git tag foo &&
        git pack-refs --all --prune &&
        git show-ref >all-of-them &&
        git pack-refs &&
        git show-ref >again &&
-       diff all-of-them again
+       test_cmp all-of-them again
 '
 
 test_done